{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T16:30:42Z","timestamp":1790094642545,"version":"4.0.1"},"reference-count":15,"publisher":"American Society of Clinical Oncology (ASCO)","issue":"34","content-domain":{"domain":["ascopubs.org"],"crossmark-restriction":true},"short-container-title":["JCO"],"published-print":{"date-parts":[[2023,12,1]]},"abstract":"<jats:p> Clinical trials frequently include multiple end points that mature at different times. The initial report, typically based on the primary end point, may be published when key planned co-primary or secondary analyses are not yet available. Clinical Trial Updates provide an opportunity to disseminate additional results from studies, published in JCO or elsewhere, for which the primary end point has already been reported. <\/jats:p><jats:p> The JIPANG study is an open-label phase III trial evaluating the efficacy of pemetrexed plus cisplatin (PemP) versus vinorelbine plus cisplatin (NP) as adjuvant chemotherapy in patients with stage II-IIIA nonsquamous non\u2013small-cell lung cancer (NSCLC). Here, we report the long follow-up overall survival (OS) data. Eligible patients were randomly assigned to receive either PemP or NP. The primary end point was recurrence-free survival (RFS), and the secondary end point included OS. This analysis was performed using data collected 5 years after the last patient enrollment. Among 804 patients enrolled, 783 patients were eligible (384 for NP and 389 for PemP). The updated median RFS was 37.5 months in the NP arm and 43.4 months in the PemP arm with a hazard ratio of 0.95 (95% CI, 0.79 to 1.14). At a median follow-up of 77.3 months, the OS rates at 3 and 5 years were 84.1% and 75.6% versus 87.0% and 75.0% with a hazard ratio of 1.04 (95% CI, 0.81 to 1.34). This long-term follow-up analysis showed that PemP had similar efficacy to NP in both RFS and OS for this population, with one of the longest OS data compared with the historical data. <\/jats:p>","DOI":"10.1200\/jco.23.00179","type":"journal-article","created":{"date-parts":[[2023,9,14]],"date-time":"2023-09-14T16:46:20Z","timestamp":1694709980000},"page":"5242-5246","update-policy":"https:\/\/doi.org\/10.1200\/crossmark","source":"Crossref","is-referenced-by-count":17,"title":["Five-Year Overall Survival Analysis of the JIPANG Study: Pemetrexed or Vinorelbine Plus Cisplatin for Resected Stage II-IIIA Nonsquamous Non\u2013Small-Cell Lung Cancer"],"prefix":"10.1200","volume":"41","clinical-trial-number":[{"clinical-trial-number":"umin000006737","registry":"10.18810\/umin-japan"}],"author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0590-9259","authenticated-orcid":false,"given":"Hirotsugu","family":"Kenmotsu","sequence":"first","affiliation":[{"name":"Division of Thoracic Oncology, Shizuoka Cancer Center, Nagaizumi-cho Sunto-gun, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7342-0853","authenticated-orcid":false,"given":"Nobuyuki","family":"Yamamoto","sequence":"additional","affiliation":[{"name":"Internal Medicine III, Wakayama Medical University, Wakayama, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshihiro","family":"Misumi","sequence":"additional","affiliation":[{"name":"Department of Data Science, National Cancer Center Hospital East, Kashiwa, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6928-357X","authenticated-orcid":false,"given":"Kiyotaka","family":"Yoh","sequence":"additional","affiliation":[{"name":"Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8541-8339","authenticated-orcid":false,"given":"Haruhiro","family":"Saito","sequence":"additional","affiliation":[{"name":"Department of Thoracic Oncology, Kanagawa Cancer Center, Yokohama, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3427-4558","authenticated-orcid":false,"given":"Shunichi","family":"Sugawara","sequence":"additional","affiliation":[{"name":"Department of Pulmonary Medicine, Sendai Kousei Hospital, Sendai, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Koji","family":"Yamazaki","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1284-9776","authenticated-orcid":false,"given":"Kazuhiko","family":"Nakagawa","sequence":"additional","affiliation":[{"name":"Department of Medical Oncology, Faculty of Medicine, Kindai University, Osaka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9940-5897","authenticated-orcid":false,"given":"Kenji","family":"Sugio","sequence":"additional","affiliation":[{"name":"Department of Thoracic and Breast Surgery, Oita University, Oita, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2960-4364","authenticated-orcid":false,"given":"Takashi","family":"Seto","sequence":"additional","affiliation":[{"name":"Department of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7588-6745","authenticated-orcid":false,"given":"Shinichi","family":"Toyooka","sequence":"additional","affiliation":[{"name":"Department of General Thoracic Surgery, Breast and Endocrinological Surgery, Okayama University, Okayama, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7262-6000","authenticated-orcid":false,"given":"Hiroshi","family":"Date","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9860-8505","authenticated-orcid":false,"given":"Tetsuya","family":"Mitsudomi","sequence":"additional","affiliation":[{"name":"Division of Thoracic Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka-Sayama, 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